No, invokedynamic is not mandatory for lambda. It's a proposed translation, which has the advantage to make lambdas that do not capture values to be seen as con

No, invokedynamic is not mandatory for lambda. It's a proposed translation, which has the advantage to make lambdas that do not capture values to be seen as constant by the VM. But you're right that certified Java 7 VM must have an invokedynamic opcode.